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package utils
import (
"errors"
"fmt"
"time"
"gorm.io/gorm"
)
//@author: [songzhibin97](https://github.com/songzhibin97)
//@function: ClearTable
//@description: 清理数据库表数据
//@param: target db(数据库对象) *gorm.DB,tableName(表名) string,compareField(比较字段) string , interval string 间隔
//@return: err
func ClearTable(db *gorm.DB, tableName string, compareField string, interval string) error {
if db == nil {
return errors.New("db Cannot be empty")
}
duration, err := time.ParseDuration(interval)
if err != nil {
return err
}
if duration < 0 {
return errors.New("parse duration < 0")
}
return db.Debug().Exec(fmt.Sprintf("DELETE FROM %s WHERE %s < ?", tableName, compareField), time.Now().Add(-duration)).Error
}